[Mesa-dev] [PATCH 2/2] AMDGPU: Add intrinsic for sampling with explicit LOD on SI.

[Michel Dänzer]

From: Michel Dänzer <michel.daenzer at amd.com>


Signed-off-by: Michel Dänzer <michel.daenzer at amd.com>
---
 lib/Target/AMDGPU/SIInstructions.td |    9 ++++++++-
 lib/Target/AMDGPU/SIIntrinsics.td   |    1 +
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/lib/Target/AMDGPU/SIInstructions.td b/lib/Target/AMDGPU/SIInstructions.td
index aa31bb5..8512b48 100644
--- a/lib/Target/AMDGPU/SIInstructions.td
+++ b/lib/Target/AMDGPU/SIInstructions.td
@@ -495,7 +495,7 @@ defm S_LOAD_DWORDX8 : SMRD_Helper <0x00000003, "S_LOAD_DWORDX8", SReg_256, v8i32
 //def IMAGE_ATOMIC_FMAX : MIMG_NoPattern_ <"IMAGE_ATOMIC_FMAX", 0x0000001f>;
 def IMAGE_SAMPLE : MIMG_Load_Helper <0x00000020, "IMAGE_SAMPLE">; 
 //def IMAGE_SAMPLE_CL : MIMG_NoPattern_ <"IMAGE_SAMPLE_CL", 0x00000021>;
-//def IMAGE_SAMPLE_D : MIMG_NoPattern_ <"IMAGE_SAMPLE_D", 0x00000022>;
+def IMAGE_SAMPLE_D : MIMG_Load_Helper <0x00000022, "IMAGE_SAMPLE_D">;
 //def IMAGE_SAMPLE_D_CL : MIMG_NoPattern_ <"IMAGE_SAMPLE_D_CL", 0x00000023>;
 //def IMAGE_SAMPLE_L : MIMG_NoPattern_ <"IMAGE_SAMPLE_L", 0x00000024>;
 def IMAGE_SAMPLE_B : MIMG_Load_Helper <0x00000025, "IMAGE_SAMPLE_B">;
@@ -1131,6 +1131,13 @@ def : Pat <
                 SReg_256:$rsrc, SReg_128:$sampler)
 >;
 
+/* int_SI_sample_lod */
+def : Pat <
+  (int_SI_sample_lod imm:$writemask, VReg_128:$coord, SReg_256:$rsrc, SReg_128:$sampler),
+  (IMAGE_SAMPLE_D imm:$writemask, 0, 0, 0, 0, 0, 0, 0, VReg_128:$coord,
+                  SReg_256:$rsrc, SReg_128:$sampler)
+>;
+
 /* int_SI_sample_bias */
 def : Pat <
   (int_SI_sample_bias imm:$writemask, VReg_128:$coord, SReg_256:$rsrc, SReg_128:$sampler),
diff --git a/lib/Target/AMDGPU/SIIntrinsics.td b/lib/Target/AMDGPU/SIIntrinsics.td
index f8039d1..1008fc4 100644
--- a/lib/Target/AMDGPU/SIIntrinsics.td
+++ b/lib/Target/AMDGPU/SIIntrinsics.td
@@ -24,6 +24,7 @@ let TargetPrefix = "SI", isTarget = 1 in {
 
   def int_SI_sample : Intrinsic <[llvm_v4f32_ty], [llvm_i32_ty, llvm_v4f32_ty, llvm_v8i32_ty, llvm_v4i32_ty], [IntrReadMem]>;
   def int_SI_sample_bias : Intrinsic <[llvm_v4f32_ty], [llvm_i32_ty, llvm_v4f32_ty, llvm_v8i32_ty, llvm_v4i32_ty], [IntrReadMem]>;
+  def int_SI_sample_lod : Intrinsic <[llvm_v4f32_ty], [llvm_i32_ty, llvm_v4f32_ty, llvm_v8i32_ty, llvm_v4i32_ty], [IntrReadMem]>;
 
   /* Interpolation Intrinsics */
 
-- 
1.7.10.4